Chapter 3.1 - VHF Radio Communications Flashcards

1
Q

What does RTF stand for?

A

Radiotelephony.

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2
Q

Define RTF?

A

A system of transmitting and receiving voice messages by Radio.

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3
Q

What does VHF stand for?

A

Very High Frequency.

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4
Q

What does HF stand for?

A

High Frequency.

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5
Q

True or False. A Pilot would need a license to operate an Aircraft Radio?

A

True.

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6
Q

Name 4 unauthorised Transmissions when operating the Radio?

A
  • Use of obscene language.
  • False information or intent to deceive.
  • Personal/Private nature.
  • Involving the improper use of another Aircraft’s Callsign.
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7
Q

True or False. Radio is a requirement for VFR?

A

True.

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8
Q

VHF Communication is required in which Airspace?

A

Class C, D, E and G.

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9
Q

VHF Communication is required outside controlled Airspace at what altitude?

A

5000ft AMSL or above.

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10
Q

True or False. VHF Communication is not required at non-towered Aerodromes?

A

False.

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11
Q

VHF Communication is required outside controlled Airspace below 3000ft AMSL or 1000ft above terrain in which conditions?

A

Reduced Visual Meteorological Conditions (VMC).

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12
Q

True or False. For all VFR operating in Class C, D (CTRs) and E Airspace a continuous listening watch is required?

A

True.

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13
Q

True or False. An Aircraft operating in Class G Airspace at 5000ft AMSL or above requires a continuous listening watch?

A

True.

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14
Q

True or False. For Aircraft operating in Class G airspace below 5000ft AMSL is required for a Pilot to maintain continuous listening watch?

A

False. But is recommended in the interest of safety.

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15
Q

What is the Standard International Frequency unit for Radio Waves?

A

Hertz (Hz).

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16
Q

What is the VHF Frequency used for aviation communication?

A

Megahertz (MHz).

17
Q

VHF Communication Frequency ranges between?

A

118.0 MHz – 136.0 MHz.

18
Q

Which two factors can affect the quality of VHF Transmission?

A
  • Distance.

- Obstruction.

19
Q

How can a Pilot increase the range of VHF Communication?

A

By increasing Altitude.

20
Q

A Radiotelephone has two main components?

A
  • Transmitter.

- Receiver.

21
Q

Name 3 types of VHF Aerials?

A
  • Blade-type.
  • Rod-type.
  • Combination COM/NAV.
22
Q

Name the Cockpit Controls for a Radio (3)?

A
  • Selection Panel.
  • Transmit Button.
  • Speaker/Phone Switch.
23
Q

Name the controls of a Selection Panel in a Radio (4)?

A
  • ON/OFF Switch.
  • Volume Control.
  • Frequency Selector.
  • Squelch Control
24
Q

Name the 3 position functions for a Radio designed with automatic Squelch Control?

A
  • OFF.
  • ON (Power).
  • TEST.
25
Q

Name the 2 position functions for a Radio designed with manual Squelch Control?

A
  • ON.

- OFF.

26
Q

Before switching on the Radio, a Pilot must ensure what is turned on?

A

Master Switch.

27
Q

Name 2 methods in using the Transmit Button?

A
  • Push-to-Talk Switch on the Control Wheel.

- Button on Microphone.

28
Q

True or False. A Pilot can receive Transmission whilst pressing the Transmit Button?

A

False.

29
Q

What is a Squelch Control?

A

A control to filter out unwanted background noise (static).

30
Q

The Radio Set receives its power from the Aircraft’s Electrical System via what?

A

Master Switch.

31
Q

How are all communication powered by?

A

Engine-driven Alternator.

32
Q

It is essential for a Pilot to check what regularly during flight?

A

Output of the Alternator.

33
Q

If the Alternator fails, communication equipment can be operated through what?

A

Emergency Power Source (Battery).

34
Q

True or False. Radio impose a heavy drain on Battery?

A

True.

35
Q

All communication equipment is protected by what?

A

Fuses/Circuit Breakers.

36
Q

Name the sequence for operating a Radio (6)?

A
  • Check Battery Master Switch/Avionics Switch are ON.
  • Check Microphone and Headphones are plugged in correctly.
  • Switch Radio ON and adjust Squelch Control.
  • Select desired Radio on Audio Panel and set Speaker or Phone.
  • Select desired Frequency.
  • Adjust Volume.
37
Q

Name 5 good VHF-COM tips?

A
  • Make sure Frequency is clear and working.
  • Think about your message beforehand.
  • Use good Microphone Technique.
  • Use standard Phraseology.
  • Request repeat by saying ‘Say Again’ if necessary.